package com.sky.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.Objects;
@Slf4j

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    @Override
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        QueryWrapper<Employee> qw = new QueryWrapper<>();
        qw.eq("username",employeeLoginDTO.getUsername());
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
       // Employee employee = employeeMapper.getByUsername(username);
        Employee employee = employeeMapper.selectOne(qw);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 对前端的页面进行MD5加密算法处理
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
/**
 * @Description:新增员工
 * @author: zwh
 * @date:
 * @param employeeDTO
 * @return:
 */

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employee.setStatus(StatusConstant.ENABLE);
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(BaseContext.getCurrentId());
//        employee.setCreateUser(BaseContext.getCurrentId());
        employeeMapper.insert(employee);
    }

    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        Page<Employee> myPage = new Page<>(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize(),true);

        LambdaQueryWrapper<Employee> lambdaQueryWrapper = new LambdaQueryWrapper<>();


            lambdaQueryWrapper.like(employeePageQueryDTO.getName() != null,Employee::getUsername,employeePageQueryDTO.getName());

        IPage<Employee> iPage = employeeMapper.selectPage(myPage,lambdaQueryWrapper);

        PageResult pageResult = new PageResult();
        pageResult.setTotal(iPage.getTotal());
        pageResult.setRecords(iPage.getRecords());
        return pageResult;
    }

    @Override
    public void startOrStop(int status,long id) {
        LambdaUpdateWrapper<Employee> wrapper = new LambdaUpdateWrapper<>();
        wrapper.eq(Employee::getId,id).set(Employee::getStatus,status);
        employeeMapper.update(null,wrapper);
    }

    @Override
    public Employee getById(long id) {
        Employee employee = employeeMapper.selectById(id);
        return employee;
    }
//     wrapper.eq(Employee::getId,employeeDTO.getId())
//            .set(Employee::getUsername,employeeDTO.getUsername())
//            .set(Employee::getName,employeeDTO.getName())
//            .set(Employee::getPhone,employeeDTO.getPhone())
//            .set(Employee::getSex,employeeDTO.getSex())
//            .set(Employee::getIdNumber,employeeDTO.getIdNumber());
//LambdaUpdateWrapper<Employee> wrapper = new LambdaUpdateWrapper<>();

    @Override
    public void updateEmployee(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employeeMapper.updateById(employee);
    }
}
